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Câu hỏi:

18/06/2021 121

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the

correct answer to each of the questions from 40 to 47.

Hobbit-like Species of Humans

On the tiny island of Flores, east of Bali and midway between Asia and Australia, the scientists have discovered the remains of a small, hobbit-like species of humans. These people grew no larger than the modern three-year-old child. They lived about 18,000 years ago and are completely different species of human.

This discovery has taught scientists a lot about the human species. This remarkable discovery shows that the human species is more varied and flexible in its ability to adapt than previously thought. These hobbit-like people join a short list of other type of humans that lived with modern humans.

The researchers believe that these hobbits evolved from a normal size, human population that reached Flores around 840,000 years ago. One likely explanation is that, over thousands of years, the species became smaller because the environmental conditions favored a smaller body size. The dwarfing of mammals on islands occurs frequently. Islands limit food supply and predators and species compete for the same environmental space. Survival would depend on minimizing energy requirements.

According to the passage, why does a smaller size help species survive under certain condition?

A. It makes them more difficult for predators to see.

B. It allows them to move more quickly. 

C. It allows them to consume less food.

Đáp án chính xác

D. All of the above

Trả lời:

verified Giải bởi Vietjack

Đáp án C

Thông tin nằm ở câu cuối của bài văn: “Survival would depend on minimizing energy requirements.”

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CÂU HỎI HOT CÙNG CHỦ ĐỀ

Câu 1:

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

It was not until the students were seated ______ the proctor realized he had the wrong test booklets.

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Câu 2:

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

The manager _____ the men to return to work immediately.

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Câu 3:

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

The professor instructed the students _____ the essay without preparing an outline first.

Xem đáp án » 18/06/2021 1,451

Câu 4:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 4 to 8. Fill in the appropriate word in question 7

Lunch is for sharing

Mimi Ito carefully puts together her children's packed lunches each morning. She then photographs them on her cameraphone and (4) _______ the pictures on her online blog. In this way, Mimi is able to keep a record of meals that she is proud of, and hungry websurfers get the chance to look at her mouth-watering creations. For these are no ordinary lunches, Mimi prepares what are (5) _______ as bento meals for her children.

A bento is a single-portion Japanese takeaway meal that traditionally consists of rice, fish or meat, with vegetables on the side. In Japan, they are normally served in distinctive trays divided into sections for the different parts of the meal. Mimi thinks that children in (6) _______ enjoy having small compartments with little bits of food that are (7) _______ to their small appetites. However, if we think of the excitement that many of us feel when our airline meal arrives, it's easy to understand the fascination.

Mimi was born in Japan and currently lives in the USA. She is fairly health (8) _______, but believes that having wide tastes and finding pleasure in food is important. She thinks that it's possible to focus on that whilst at the same time also eating healthily.

Xem đáp án » 18/06/2021 1,446

Câu 5:

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

A man answered the phone. He said Tom was out.

Xem đáp án » 18/06/2021 1,388

Câu 6:

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Hardly _____ the office when he realized that he had forgotten his wallet.

Xem đáp án » 18/06/2021 1,363

Câu 7:

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

Had the committee members considered the alternatives more carefully, they would have realized that the second was better as the first.

Xem đáp án » 18/06/2021 1,317

Câu 8:

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

The news of the decision to invade with armed forces were not well received by the citizens.

Xem đáp án » 18/06/2021 1,167

Câu 9:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 9 to 13.

Scientists have experimented with a new procedure for alleviating the damage caused by strokes. Strokes are frequently caused by a blood clot lodging in the tree of arteries in the head, choking the flow of blood. Some brain cells die as a direct result of the stroke, but others also die over several hours because the proteins spilling out of the first cells that die trigger a chemical chain reaction that kills the neighboring cells.

The current method of reducing the amount of damage is to give a clot dissolver, known as TPA, as soon as possible. But generally TPA is not given to the patient until he or she reaches the hospital, and it still does not immediately stop the damage.

The new technology, still in the research stage, involves chilling the area or the entire patient. It is already known that when an organ is cooled, damage is slowed. This is why sometimes a person who has fallen into an icy pond is not significantly harmed after being warmed up again. The biggest issue is the method of cooling. It is not feasible to chill the head alone. Doctors have chilled the entire body by wrapping the patient in cold materials, but extreme shivering was a problem.

The new idea is to cool the patient from the inside out. Several companies are studying the use of cold-tipped catheters, inserted into the artery in the groin and threaded up to the inferior vena cava, which is a large vein that supplies blood to the abdomen. The catheter is expected to cool the blood that flows over it, thus allowing cooler blood to reach the area of the stroke damage.

It is not expected that the cooling will be substantial, but even a slight decrease in temperature is thought to be helpful. In effect, the patient is given a kind of forced hypothermia. And doctors believe it is important to keep the patient awake so that they can converse with the patient in order to ascertain mental condition.

Studies continue to determine the most effective and least damaging means of cooling the patient in order to reduce this damage.

According to the passage, what causes a stroke?

Xem đáp án » 18/06/2021 1,138

Câu 10:

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Whereas many people visit Internet sites where products are sold, a great number of them still hesitate _____ purchases online.

Xem đáp án » 18/06/2021 1,096

Câu 11:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 9 to 13.

Scientists have experimented with a new procedure for alleviating the damage caused by strokes. Strokes are frequently caused by a blood clot lodging in the tree of arteries in the head, choking the flow of blood. Some brain cells die as a direct result of the stroke, but others also die over several hours because the proteins spilling out of the first cells that die trigger a chemical chain reaction that kills the neighboring cells.

The current method of reducing the amount of damage is to give a clot dissolver, known as TPA, as soon as possible. But generally TPA is not given to the patient until he or she reaches the hospital, and it still does not immediately stop the damage.

The new technology, still in the research stage, involves chilling the area or the entire patient. It is already known that when an organ is cooled, damage is slowed. This is why sometimes a person who has fallen into an icy pond is not significantly harmed after being warmed up again. The biggest issue is the method of cooling. It is not feasible to chill the head alone. Doctors have chilled the entire body by wrapping the patient in cold materials, but extreme shivering was a problem.

The new idea is to cool the patient from the inside out. Several companies are studying the use of cold-tipped catheters, inserted into the artery in the groin and threaded up to the inferior vena cava, which is a large vein that supplies blood to the abdomen. The catheter is expected to cool the blood that flows over it, thus allowing cooler blood to reach the area of the stroke damage.

It is not expected that the cooling will be substantial, but even a slight decrease in temperature is thought to be helpful. In effect, the patient is given a kind of forced hypothermia. And doctors believe it is important to keep the patient awake so that they can converse with the patient in order to ascertain mental condition.

Studies continue to determine the most effective and least damaging means of cooling the patient in order to reduce this damage.

The word “alleviating” in the first sentence is closest in meaning to _____.

Xem đáp án » 18/06/2021 1,031

Câu 12:

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.

There are substantial differences between the two groups.

 

Xem đáp án » 18/06/2021 1,005

Câu 13:

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

_____ she’s got a job that she likes, she’s a lot happier.

Xem đáp án » 18/06/2021 956

Câu 14:

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

She’s more interested in job _______ than in making a lot of money.

Xem đáp án » 18/06/2021 863

Câu 15:

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Michael put his mistake_____ to lack of concentration.

Xem đáp án » 18/06/2021 797

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